AT22883B
(en )
1906-01-25
Process for the production of filling material for filter beds for the purification of waste water.
FR352288A
(en )
1905-08-07
Water filtration process
CH41583A
(en )
1908-11-02
Process for the continuous production of calcium carbide
AT31849B
(en )
1908-02-25
Process for the production of artificial fertilizers from household waste.
AT4298B
(en )
1901-05-25
Process for the production of filter mass.
CH44831A
(en )
1909-09-16
Process for the purification of electrochemically produced chlorates
AT23244B
(en )
1906-02-26
Process for the production of dressings.
CH49756A
(en )
1911-03-16
Process for the production of calcium carbide fittings
AT31807B
(en )
1908-02-10
Process for the production of magnesia cement compounds.
AT1091B
(en )
1900-03-26
Process for the production of artificial stones.
AT27649B
(en )
1907-02-25
Process for the production of dentifrices.
CH43912A
(en )
1909-07-01
Process for the production of galvanic chromium deposits
AT36321B
(en )
1909-02-25
Process for the production of fabric panels for baskets.
AT2651B
(en )
1900-11-10
Process for the production of artificial stones.
CH63309A
(en )
1914-01-16
Process for the production of briquettes using sulphite waste liquor
CH43486A
(en )
1909-05-17
Process for the production of printing plates
AT3228B
(en )
1901-01-25
Process for the production of stone-asphalt pipes.
AT2888B
(en )
1900-12-10
Process for the production of drain pipes.
AT26852B
(en )
1906-12-27
Process for the production of iron electrodes for collectors.
CH79838A
(en )
1919-01-16
Process for the production of flat structures from compressible material waste
AT57774B
(en )
1913-02-25
Process for the production of filter discs.
CH49382A
(en )
1911-02-01
Process for the production of magnesia cement
CH46055A
(en )
1910-01-17
Process for the production of collecting walls for photos
CH41584A
(en )
1908-11-02
Process for the utilization of the carbon oxide formed during the production of calcium carbide
AT27600B
(en )
1907-02-25
Process for the production of hollow bodies from quartz glass.